diff --git a/.env.example b/.env.example
index 2ae8914..d421729 100644
--- a/.env.example
+++ b/.env.example
@@ -12,5 +12,5 @@ ALLOWED_CHANNEL_IDS="C000000,C000001"
 
 SYSTEM_MESSAGE="너는 AWSKRUG(AWS Korea User Group)에서 친절하게 도움을 주는 구름이(Gurumi)야."
 
-MAX_LEN_SLACK="10000"
+MAX_LEN_SLACK="3000"
 MAX_LEN_BEDROCK="4000"
diff --git a/README.md b/README.md
index 17d2ff1..5c0abc0 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,9 @@
 # lambda-gurumi-ai-bot
 
+A serverless Slack bot using AWS Lambda, API Gateway, and DynamoDB.
+
+![Gurumi Bot](images/gurumi-bot.png)
+
 ## Install
 
 ```bash
diff --git a/bedrock/invoke_claude_3_image.py b/bedrock/invoke_claude_3_image.py
index d728f66..6a75f9e 100644
--- a/bedrock/invoke_claude_3_image.py
+++ b/bedrock/invoke_claude_3_image.py
@@ -31,7 +31,7 @@ def invoke_claude_3(prompt):
     # Invoke Claude 3 with the text prompt
     model_id = "anthropic.claude-3-sonnet-20240229-v1:0"
 
-    image = "./gurumi-bot.png"
+    image = "../images/gurumi-bot.png"
 
     # Read reference image from file and encode as base64 strings.
     with open(image, "rb") as file:
diff --git a/handler.py b/handler.py
index cd3817f..c6d0824 100644
--- a/handler.py
+++ b/handler.py
@@ -126,9 +126,9 @@ def chat_update(say, channel, thread_ts, latest_ts, message="", continue_thread=
         app.client.chat_update(channel=channel, ts=latest_ts, text=text)
 
         if continue_thread:
-            text = text.replace("**", "*") + " " + BOT_CURSOR
+            text = message.replace("**", "*") + " " + BOT_CURSOR
         else:
-            text = text.replace("**", "*")
+            text = message.replace("**", "*")
 
         # New message
         result = say(text=text, thread_ts=thread_ts)
diff --git a/bedrock/gurumi-bot.png b/images/gurumi-bot.png
similarity index 100%
rename from bedrock/gurumi-bot.png
rename to images/gurumi-bot.png